Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to estimate when it's the best time to plant geum by looking at the USDA zone info for Barstow.

Planting Calendar for Geum

Frost tolerance for geum:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since geum are one of those plants that can tolerate a tiny bit of cold weather you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant geum in Barstow is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant geum and expect a good harvest is probably September. You probably don't want to wait any later than that or else your geum may not have a chance to fully mature. Starting your geum indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Barstow. You can expect an average low temperature of 20°F in the coldest months of winter.

Remember that USDA zone info for Barstow may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Barstow last frost occurs after February 15 so be sure to be ready to cover your geum if you have a surprise late frost.

USDA Zone Info for Barstow

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Barstow

You may be interested in your other planting guides for Barstow.